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ospf6d: OSPFv3 route change comparision fixed for ASBR-only change

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When a router route already exists in the area border routers table
as an ABR and it solely changes its ABR or ASBR status, the change
was missed and border route is not updated. This fixes the comparison
for the router_bits in the ospf6_path structure.

This fixes issue https://github.com/FRRouting/frr/issues/16053 although
the actual problem is not the computing router (r2) and not the OSPFv3
redistribution (r3).

Signed-off-by: Acee <aceelindem@gmail.com>
(cherry picked from commit 772688d2d3)
This commit is contained in:
Acee 2024-05-28 10:02:27 -04:00 committed by ton31337
parent f98915a0a0
commit a8a33a5010
2 changed files with 5 additions and 3 deletions
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7
ospf6d/ospf6_abr.c
View File

@ -1350,9 +1350,10 @@ void ospf6_abr_examin_summary(struct ospf6_lsa *lsa, struct ospf6_area *oa)
* does not match with the new entry then add the new route
*/
if (old_entry_updated == false) {
if ((old == NULL) || (old->type != route->type)
|| (old->path.type != route->path.type)
|| (old->path.cost != route->path.cost))
if ((old == NULL) || (old->type != route->type) ||
(old->path.type != route->path.type) ||
(old->path.cost != route->path.cost) ||
(old->path.router_bits != route->path.router_bits))
add_route = true;
}

1
ospf6d/ospf6_route.h
View File

@ -287,6 +287,7 @@ extern const char *const ospf6_path_type_substr[OSPF6_PATH_TYPE_MAX];
prefix_same(&(ra)->prefix, &(rb)->prefix) && \
(ra)->path.type == (rb)->path.type && \
(ra)->path.cost == (rb)->path.cost && \
(ra)->path.router_bits == (rb)->path.router_bits && \
(ra)->path.u.cost_e2 == (rb)->path.u.cost_e2 && \
listcount(ra->paths) == listcount(rb->paths) && \
ospf6_route_cmp_nexthops(ra, rb))